EP 0648078 A4 19940720 - PURIFICATION OF ZEIN FROM CORN GLUTEN MEAL.
Title (en)
PURIFICATION OF ZEIN FROM CORN GLUTEN MEAL.
Title (de)
REINIGUNG VON ZEIN AUS WEIZENGLUTENMEHL.
Title (fr)
PURIFICATION DE LA ZEINE EXTRAITE DE LA FARINE DE GLUTEN DE MAIS.
Publication
Application
Priority
- US 81411891 A 19911226
- US 9211134 W 19921218
Abstract (en)
[origin: WO9312667A1] Zein, zein bodies, glutelins or destarched corn gluten are extracted and purified from corn gluten meal by efficiently removing and recovering food grade pigments and starch hydrolysates, while discarding unwanted fractions. Corn gluten is subjected to the combination of enzymatic starch hydrolysis, alkaline treatment, alcohol washing, alcohol extraction, carbon or ion exchange resin purification, and precipitation to produce a substantially starch-free, deflavored and decolored zein which is suitable for use in foods and pharmaceuticals. An advantage of the process is its use of food grade alcohol(s) to deflavor, decolorize, and extract the zein from corn gluten meal. Deflavored, decolored and destarched corn gluten, zein bodies or glutelins are also obtained and are useful as vegetable protein supplements. By-products of the invention such as yellow food pigments and starch hydrolysates can be further purified and/or used directly in various foods.
IPC 1-7
A23J 1/12; A23J 3/14; C07K 1/00; C07K 14/415; A23J 3/18; C07K 14/425
IPC 8 full level
A23J 1/12 (2006.01); A23J 3/18 (2006.01); C07K 1/14 (2006.01); C07K 14/415 (2006.01); C07K 14/425 (2006.01)
CPC (source: EP US)
A23J 3/18 (2013.01 - EP US); C07K 14/425 (2013.01 - EP US)
Citation (search report)
- [XA] WO 9003123 A2 19900405 - ENZYTECH INC [US]
- [YA] US 3840515 A 19741008 - REINERS R, et al
- [A] US 4645831 A 19870224 - LAWHON JAMES T [US]
- [Y] DATABASE WPI Week 8836, Derwent World Patents Index; AN 88-254488 & DATABASE WPI Week 8836, Derwent World Patents Index; AN 88-254487
- [Y] PATENT ABSTRACTS OF JAPAN vol. 015, no. 478 (C - 0891) 4 December 1991 (1991-12-04)
- [PY] J.C. WALLACE ET AL: "NEW METHODS FOR EXTRACTION AND QUANTITATION OF ZEINS REVEAL A HIGH CONTENT OF GAMMA-ZEIN IN OPAQUE-2 -MAIZE", PLANT PHYSIOLOGY, vol. 92, 1992, pages 191 - 196, XP002459553
- [A] L.A. DANZER, E.D. REES: "PURIFICATION OF ZEIN ON A LABORATORY SCALE BY CHARCOAL OR GEL FILTRATION", CEREAL CHEMISTRY, vol. 48, no. 2, 1971, pages 118 - 120, XP009090791
- See references of WO 9312667A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9312667 A1 19930708; AT E200183 T1 20010415; CA 2126668 A1 19930708; DE 69231771 D1 20010510; EP 0648078 A1 19950419; EP 0648078 A4 19940720; EP 0648078 B1 20010404; JP H07502416 A 19950316; US 5254673 A 19931019; US 5580959 A 19961203
DOCDB simple family (application)
US 9211134 W 19921218; AT 93901944 T 19921218; CA 2126668 A 19921218; DE 69231771 T 19921218; EP 93901944 A 19921218; JP 51185093 A 19921218; US 40232095 A 19950310; US 81411891 A 19911226